> The difference is that a simple hub repeats all packets to all machines
> connected to it, hence you can see any packets to any machine. A switch is
> a piece of network kit that pickups which machines (by hardware address)
> are connected to it and only sends packets to a machine to that machine.
> This is both a security advantage and a speed advantage.
This is a myth. One I wish would die. In most respects a switched network
is less secure. It is almost as easy to steal sessions and packets, and it
is a lot harder for the admin to detect an attack.
If your switch doesn't do IP and ARP layer filtering then its just a speed
win. It is not a security help.
Alan
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